U-Value Calculator (Tool)

The window of
U-Value Calculator is used for rapid calculation of U-Values for layered
constructs (the R-Value is calculated too).

Data of the layered structure can be saved into a layered construct file (<name>.LayeredConstruct).
Data can also be loaded from material layers file (<name>.MaterialLayers)
or layered construct file (<name>.LayeredConstruct).

Even if the order of layers and the inside/outside orientation do not matter for
the calculation of the U-Value one can reorder layers within this tool as needed.

Tool specific menus

Menus specific to this tool are combined into the
main menu of the application:

File→Layered Construct→New

Creates a new, empty, structure of a layered construct.Warning: Save data prior to requesting this function!Remark: Changing the construct might be disabled if the U-Value Calculator is shown in read-only mode (e.g. when
called from the Psi-Value Determination window.

File→Layered Construct→Load...

Allows loading data of material layers (<name>.MaterialLayers)
or layered construct (<name>.LayeredConstruct) from a file.Warning: Save data prior to requesting this function!Remark: Loading the construct might be disabled if the U-Value Calculator is shown in read-only mode (e.g. when
called from the Psi-Value Determination window.

File→Layered Construct→Save As...

Allows storing the data of a layered construct into
separate file (<name>.LayeredConstruct).

Depending on the assessment criteria respective surface resistance values shall be used or replaced if calculation target has
changed.
The standards EN ISO 6946, 13788 and 10077 provide set of such standardized values.